EP 0943596 B1 20020605 - Process for the preparation of unsaturated fatty alcohols from lauric oils
Title (en)
Process for the preparation of unsaturated fatty alcohols from lauric oils
Title (de)
Verfahren zur Herstellung von ungesättigten Fettalkoholen aus Lauricölen
Title (fr)
Procédé pour la préparation d'alcools gras insaturés à partir d'huiles lauriques
Publication
Application
Priority
DE 19810440 A 19980311
Abstract (en)
[origin: EP0943596A2] Production of unsaturated fatty alcohols from lauric oils by selective hydrogenation of unsaturated methyl ester fraction separated by fractional crystallisation. Production of unsaturated fatty alcohols comprises: (a) transesterifying a deacidified lauric oil with methanol to obtain a total fatty acid methyl ester mixture; (b) separating the ester mixture into a 12-16C methyl ester fraction (I) and an 18C methyl ester fraction (II) by fractional distillation, where (II) contains practically all of the unsaturated methyl esters; (c) winterizing fraction (II) by solventless fractional crystallization to remove saturated methyl esters; (d) subjecting the winterized fraction (II) to selective hydrogenation to obtain unsaturated fatty alcohols with an iodine number of 90-100; (e) purifying the unsaturated fatty alcohols by distillation; and optionally (f) blending the product with other fatty alcohols to obtain a desired iodine number.
IPC 1-7
IPC 8 full level
B01J 23/26 (2006.01); C07B 61/00 (2006.01); C07C 29/149 (2006.01); C07C 29/78 (2006.01); C07C 29/80 (2006.01); C07C 33/02 (2006.01)
CPC (source: EP US)
C07C 29/149 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0943596 A2 19990922; EP 0943596 A3 19991229; EP 0943596 B1 20020605; DE 19810440 C1 19990923; DE 59901583 D1 20020711; ES 2177158 T3 20021201; IN 192081 B 20040221; JP 4554735 B2 20100929; JP H11322648 A 19991124; US 6187974 B1 20010213
DOCDB simple family (application)
EP 99104350 A 19990304; DE 19810440 A 19980311; DE 59901583 T 19990304; ES 99104350 T 19990304; IN 108BO1999 A 19990211; JP 6396199 A 19990310; US 26280299 A 19990304